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Flowers of Death
Episode number: 1
Cosmic Smoke Guns
Episode number: 2
Lost in the Snow Cap Region of Mars
Episode number: 3
Explosion on Morehouse Five
Episode number: 4
The Evil Guardian of Harpola
Episode number: 5
Hit by a Meteorite
Episode number: 6
Planetoid Plot
Episode number: 7
Victim of Amnesia
Episode number: 8
The Lieutenant's Revenge
Episode number: 9
The Mind Readers
Episode number: 10
Slaves of the Exonium Mine
Episode number: 11
Abandoned in Outer Space
Episode number: 12
The Great Bank Robbery
Episode number: 13
The Mysterious Moonquakes
Episode number: 14
The Phantom Fleet
Episode number: 15
Trouble on Titan
Episode number: 16
Sacrifice to the Moon God
Episode number: 17
Uncertain Death
Episode number: 18
nvasion
Episode number: 19
A Threat to the United Planets
Episode number: 20
The Threat of the Thormanoids
Episode number: 21
Jungle Jeopardy
Episode number: 22
The Scheming Sibling
Episode number: 23
Danger on Mars
Episode number: 24
Mission to Mercury
Episode number: 25
The Deadly Ray Gun
Episode number: 26
The Force Barrier
Episode number: 27
The Iron Fist
Episode number: 28
The Derelict Space Station
Episode number: 29
The Mystery of Ancient Egypt
Episode number: 30
Mystery of the Pirate Ship
Episode number: 31
Emergency Flight to Mercury
Episode number: 32
Blackmail at Lake Azure
Episode number: 33
The Hidden Map
Episode number: 34
The Green Mold of Mars
Episode number: 35
The Galaxtic War
Episode number: 36
The Energy Thief
Episode number: 37
Sabotage of the Jupiter Run
Episode number: 38
The Star Raiders
Episode number: 39
The Code Breakers
Episode number: 40
Errand of Mercy
Episode number: 41
Overview: The crew miscalculates, and instead of going back in time to 1952, they end up in Nazi Germany in 1942 in the middle of a world war.
Underwater Treachery
Episode number: 42
The Electronic Man
Episode number: 43
Treachery on Terra Five
Episode number: 44
Frontier Epidemic
Episode number: 45
Powerdive
Episode number: 46
Three Exiles
Episode number: 47
The Shakedown
Episode number: 48
The Human Trap
Episode number: 49
The Chase in Time
Episode number: 50
The Deadly Sunbeam
Episode number: 51